Question: A cesium chloride will separate DNA molecules by
[A].absorption
resorption
density
adhesion
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
DNA Structure and Replication
In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of ‘Tm’ if the GC% increases to 60%?
Question: In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of ‘Tm’ if the GC% increases to 60%?
[A].Remains same
Increases
Decreases
Can not be compared
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
If one cell has AT contents 40%, what will be the percentage of Guanine residue?
Question: If one cell has AT contents 40%, what will be the percentage of Guanine residue?
[A].60%
15%
30%
Guanine residue can not be calculated
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Without telomerase, what would happen to the ends of chromosomes after each round of replication?
Question: Without telomerase, what would happen to the ends of chromosomes after each round of replication?
[A].Chromosomes would become progressively shorter
Nothing would happen
Chromosomes would get longer
none of the above
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
An RNA primer is synthesized by
Question: An RNA primer is synthesized by
[A].DNA helicases
ligase
DNA topoisomerase
primase
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
After one replication in 15N, how many bands should be observed in a cesium chloride gradient?
Question: After one replication in 15N, how many bands should be observed in a cesium chloride gradient?
[A].One
Two
Three
A smear
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
DNA gyrase in E. coli
Question: DNA gyrase in E. coli
[A].adds positive supercoils to chromosomal DNA
can be inhibited with antibiotics
is required only at the oriC site
performs the same function as helicase in eukaryotes
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
An important difference between eukaryotic and prokaryotic DNA replication is
Question: An important difference between eukaryotic and prokaryotic DNA replication is
[A].eukaryotic DNA polymerases are faster
more DNA polymerases are found in eukaryotes
multiple origins of replication in eukaryotes
RNA primers are not required in eukaryotes
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Messelsen and Stahl model of replication was called
Question: Messelsen and Stahl model of replication was called
[A].conservative replication
semi-conservative replication
dispersive replication
Cri du Chat
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
DNA replication results in
Question: DNA replication results in
[A].two completely new DNA molecules
two DNA molecules such that each one contains a strand of the original
one new DNA molecules 1 old molecule
one new molecule of RNA
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.